LED (Light Emitting Diode) illumination intelligent control system
An intelligent control system and LED lighting technology, applied in energy-saving control technology, lighting devices, light sources, etc., can solve the problems of increased light decay of LED chips, reduced forward current, and increased maintenance and use costs, so as to improve the working environment temperature, The effect of improving reliability and life and reducing the chance of maintenance
An intelligent control system and LED lighting technology, applied in energy-saving control technology, lighting devices, light sources, etc., can solve the problems of increased light decay of LED chips, reduced forward current, and increased maintenance and use costs, so as to improve the working environment temperature, The effect of improving reliability and life and reducing the chance of maintenance
CN102438378AInactive Publication Date: 2012-05-02MACMIC SCIENCE & TECHNOLOGY CO LTD
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[0035] See figure 1 As shown, the LED lighting intelligent control system of the present invention includes a synchronous rectification unit for providing DC power to at least two intelligent power supply control units, and the output ends of each intelligent power supply control unit are connected to the corresponding LED lamp group units through wires, synchronously The rectifier unit is connected to the intelligent power supply control unit through each high-voltage DC bus, and provides constant voltage DC to multiple intelligent power supply control units through the synchronous rectification unit, and each intelligent power supply control unit completes the drive control and detection of its corresponding LED lamp group unit, and supplies LED The light unit provides power and PWM control signals.
[0036] See figure 1 , 2 As shown, the synchronous rectification unit of the present invention includes a three-phase PWM synchronous rectification module and a DC-DC Buck con...
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The invention relates to an LED (Light Emitting Diode) illumination intelligent control system which comprises a synchronous rectification unit used for providing direct-current power for at least two intelligent power control units, wherein the output end of each intelligent power control unit is connected with a corresponding LED light group unit via an electric wire; and the synchronous rectification unit is connected with each intelligent power control unit by a high-voltage direct-current bus. In the intelligent control system, stable constant-voltage direct current is provided for an LED illumination system by the synchronous rectification unit, so that the whole illumination system can operate under high power factor with less harmonic wave. the corresponding LED light group units are dynamically and precisely dimmed by the intelligent power control units, and the LED operation situation is detected in real time and communication with an external control center is carried out. The intelligent control system has the characteristic of reasonable structure, and is convenient to control, the working environment temperature of an LED light group can be improved, and the reliability and the service life of an LED illumination light can be improved.
Description
technical field [0001] The invention relates to an LED lighting intelligent control system, which belongs to the technical field of lighting power supply. Background technique [0002] As a new generation of lighting technology, LED has unique advantages such as energy saving, environmental protection, and high photoelectric efficiency, and is a typical green lighting source. [0003] Since the light attenuation of the LED chip is not only related to the attenuation of the packaging material and phosphor powder, but also the main reason is that the heat generated during the light emitting process of the LED chip makes the PN junction temperature of the LED chip rise. According to the temperature characteristic curve of the LED chip, The temperature rise reduces the maximum allowable operating current of the LED chip, so under the constant current drive, the light decay of the LED chip is increased and the life is shortened. Therefore, the current high-power lighting LED lamp...
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Patent Timeline
02 May 2012
Publication
CN102438378A
- IPC
- H05B37/02; H02M7/219; H02M1/32
- CPC
- Y02B20/48; Y02B20/40
- Inventors
- 雷锡社; 贺建平